/[MITgcm]/MITgcm/doc/tag-index
ViewVC logotype

Diff of /MITgcm/doc/tag-index

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph | View Patch Patch

revision 1.1551 by jmc, Fri Dec 16 22:57:31 2011 UTC revision 1.1604 by gforget, Sat Mar 3 03:46:25 2012 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice :
8      - final version of turbulent flux params, as agreed at MIT ice meet:
9           SEAICE_mcPheePiston (default is ~ 0.000875)
10           SEAICE_mcPheeTaper (default is 0.)
11           SEAICE_frazilFrac (defualt is 1.)
12           SEAICE_mcPheeStepFunc (default is false)
13      - changes results at trunction error level.
14    o added pkg/frazil - see frazil_description.tex for details
15    o pkg/shelfice/shelfice_thermodynamics.F
16      - fix exponents for velocity dependent exchange coefficients: change
17        from 2/3(=0) to 0.66666666666666667
18      - move computation of velocity dependent exchange coefficients into
19        separate loop, so that it applies to both thermodynamics
20      - move some divisions by constants out of loops
21    
22    checkpoint63j (2012/02/16)
23    o pkg/seaice:
24      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
25      - SItracer:  added run time params, and allow coupling to ocn salinity.
26    o pkg/seaice: remove (almost) all divisions by constants within loops
27      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
28      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
29      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
30      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
31    o pkg/seaice :
32      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
33        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
34      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
35      - add permanent SItflux diag that corresponds to TFLUX but includes
36        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
37      - allow activation/testing of a fix for suspected missing term in
38        ocn-ice heat budget (to be confirmed). To test this, you want to
39        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
40        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
41      - no change in results, fwd or ad.
42    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
43      - switch to variable freezing point.
44           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
45      - bug fix : the sublimation term that was missing is now activated.
46           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
47      - bug fix : flooding sign term for SIsal0.NE.0.
48           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
49    o pkg/seaice:
50      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
51        is now the default, and the old default constant freezing point is recovered
52        with SEAICE_tempFrz0    = -1.96,
53             SEAICE_dTempFrz_dS = 0.,
54      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
55      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
56      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
57        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
58      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
59        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
60      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
61        seaice_growth r149 for legacy branch (no results change).
62      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
63        from I. Fenty).
64      - results did not change except for global_ocean.cs32x15, mostly due to the
65        switch to variable freezing point (see above item for detail).
66    o pkg/thsice:
67      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
68        seawater freezing in thsice_calc_thickn (not used).
69    o pkg/seaice: turbulent flux term specification via run time params.
70      - replace CPP switches with run time switches to facilitate testing
71      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
72                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
73      - added runtime parameter : SEAICEturbFluxFormula
74      - move Mcphee constants to SEAICE_PARAMS.h
75      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
76                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
77                 remove seaice_summary call (moved to seaice_init_fixed)
78      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
79        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
80      - seaice_summary.F : add missing report of read turbulent flux term set up
81                           and SITRACER.
82      - seaice_check.F : check range; inform and stop if retired CPPs are used
83                         (incl. SEAICE_AGE).
84      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
85             CPP switch, same computation as before for the different options.
86      - change results at the truncation level.
87    o pkg/seaice:
88      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
89        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
90        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
91      - update verification/*/input*/data.seaice:
92        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
93        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
94        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
95        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
96    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
97      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
98        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
99        difference in results only due to machine truncation.
100      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
101        MaykutPolySatVap; keep MIN_LWDOWN.
102      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
103      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
104        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
105    o pkg/salt_plume:
106      - isolate saltPlumeFlux array exch into a specific S/R called from
107        do_oceanic_phys.F
108      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
109    o verification:
110      - move untested set-up to MITgcm_contrib/verification_other.
111    o pkg/seaice:
112      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
113    o pkg/seaice:
114      - seaice_solve4temp.F (keeping results unchanged):
115        * add 2 future run-time params to select which saturation vapor pressure
116          formula is used and how post-iteration fluxes are set.
117          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
118        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
119          the linearized expression to stay consistent with tsurf finding.
120      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
121        can be < 0.
122    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
123      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
124        conductive heat flux F_c , and add it explicitly when updating tsurf as
125        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
126        so that now F_ia has a consistent meaning through the entire routine.
127        This causes differences at truncation level: update output of fwd exp.
128        global_ocean.cs32x15.seaice.
129    o pkg/seaice:
130      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
131        of arrays, sign/direction of fluxes; no effect on results.
132      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
133        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
134        note: this should have been done before changing celsius2K default.
135      - to keep results unchanged, add back old value of celsius2K in verification
136        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
137      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
138        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
139        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
140        freezing temp is consistent with value in seaice_growth.F ; this causes
141        differences at machine truncation level: update lab_sea AD output (3/4).
142    o pkg/seaice:
143      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
144        and climsst/sss even when using seaice (to prevent calculation that might
145        use SST on land); does not affect any verification exp.
146      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
147        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
148    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
149      over land (non-legacy code)
150    o vectorize salt_plume package:
151      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
152      - this code computes plumebk everywhere (also over land), thus requires
153        code to avoid divisions by zero and catch the case of kLev=Nr.
154      - efficiency of salt_plume_frac is still sub-optimal
155    o tools (genmake2):
156      - fix makefile NAME specification (option: -makefile NAME) by adding
157        "-f $MAKEFILE" in few places where it was missing including makedepend
158        command (contribution from Paul).
159    
160    checkpoint63i (2012/01/24)
161    o model/src:
162      - add factorized versions of some EOS code to find_rho.F,
163        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
164    o model/src:
165      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
166      - change default celsius2K from 273.16 to 273.15
167      - to keep results unchanged, add back old value of celsius2K in verification
168        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
169         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
170    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
171      to make TAF generate vectorizable code
172    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
173       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
174       have flags that do this more efficiently.
175    o pkg/diagnostics/diagstats_calc.F
176      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
177    o pkg/obcs (with exch2):
178      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
179        and remove code (in obcs_readparms.F) which was based on EXCH of indices
180        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
181    o pkg/exf and seaice exp:
182      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
183        so that switching off area & heff advection flags does not affect results.
184      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
185      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
186        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
187        results of verification experiments: 1D_ocean_ice_column(fwd),
188        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
189        and offline_exf_seaice (all 4).
190    o pkg/seaice:
191      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
192        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
193      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
194        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
195        not multi-dim advection;
196      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
197        SHORTWAVE_HEATING #undef.
198    o optim: make Makefile more robust (?)
199    o pkg/obcs:
200      * fix treatment of obcs_read_pickup for TAF
201    o pkg/shelfice:
202      * add missing initialisation of num_shifwflx
203      * new adjoint verification exp. for isomip
204      * change Prandtl and Schmidt numbers from generic formulations
205        (in terms of model diffus. and visc.) to separate runtime
206        parameters, with Holland and Jenkins (1999) default values.
207    o pkg/exf (interpolation):
208      - extended input field (2 rows) near the N & S poles:
209        * fill in with the symetric value (when even Nb of data in longitude)
210        * add average value at the poles only for scalar quantities ; for vector
211          component interpolation, skip the averaging and keep duplicated values,
212          unless the 2 components have same location (uvInterp=T) in which case
213          interpolate the 2 components together using S/R EXF_INTERP_UV.
214      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
215        together: this allows to account properly for local orientation when
216        averaging at N & S pole.
217      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
218        exf-interpolation near N & S poles. Undef by default.
219      - add debug check/print on 1rst iter if debugLevel >=2.
220    o pkg/exf:
221      - change masking flags definition (no longer "parameter"), put them in
222        common block and set them in S/R EXF_INIT_FIXED.
223      - change recognized masking flag from s,u,v to c,w,s since the mask
224        to use (maskC,W,S) depends on position on model grid and has little to
225        do with scalar/vector difference; fix masking if using P-coordinates.
226      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
227        and update results of exp. global_with_exf (x2).
228      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
229    o pkg/obcs
230      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
231    o pkg/exf (interpolation):
232      - assume periodicity in X only if input field cover full longitude range.
233      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
234        and should vectorise).
235      - fix input lat of the 2 added row (in case we provide N.pole data).
236    
237    checkpoint63h (2011/12/30)
238    o pkg/seaice:
239      - change declaration of UVM from _RL to _RS in order to get B-grid
240        uIce,vIce monitor when _RS = real*4
241    o pkg/offline:
242      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
243      - compute vertical velocity if not read from file (switch on exactConserv
244        & staggerTimeStep);
245      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
246    o verification:
247      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
248        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
249        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
250      - update output of exp. global_ocean.cs32x15.viscA4 after changing
251        grid-file angles (used here for coriolis-3d);
252      - remove (or gzip) few files not needed to run fizhi-cs experiments.
253    o pkg/exf (vector interpolation):
254      - rotate vector component toward local grid-axis orientation using grid-angles
255        (stored in GRID.h) instead of locally computed rotation angle; keep old code
256        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
257    o pkg/seaice:
258      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
259        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
260    o pkg/PKG_OPTIONS.h files:
261      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
262        outside of the #ifdef ALLOW_THISPKG / #endif block.
263      - update verification/*/code/PKG_OPTIONS.h files.
264    o add a verification experiment (offline_exf_seaice/input.seaice) that test
265      the B-grid LSOR solver
266    o pkg/seaice: sort out emissivity and long wave radiation step 2:
267      - add emissivity for snow and ice as new run-time parameters
268        (unfortunately) that default to the corresponding exf values; this
269        changes results in most verification experiments so that for backward
270        compatibility these parameter have to be set explicitly to inconsistent
271        values (ugly);
272      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
273        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
274        until we agree how to handle this bug properly
275    o pkg/exf (interpolation):
276      - add a set of run-time param ({inputfield}_interpMethod), one for
277        each interpolated input field, to select the interpolation method
278        with a value of zero switching off the interpolation;
279      - print interpolation parameters to standard output;
280      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
281        (to use instead runoff_interpMethod=0 in data.exf).
282      - simplify default setting of interpolation parameters (for all fields,
283        set position to match model grid cell-center position, leading to trivial
284        interpolation in case of regular Lat-Lon grid) and fix for the case of
285        non-uniform delY.
286    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
287       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
288       this factor is absolutely required, because the lw exitance (= out-going
289       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
290       where the reflectivity rho = 1-emissivity for conservation reasons. Once
291       this is established, we can remove the CPP-Flag (if we want to).
292    o pkg/seaice:
293      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
294        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
295      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
296        what the name implies (and not emissivity*BoltzmannConstant), this means
297        the old default value of 5.5e-8 now means
298        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
299        S/R exf_readparms
300      - FV-discretization of the B-grid LSOR solver, turn on with
301        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
302        of the calling routine dynsolver, so that B and C-grid code look a
303        little more alike.
304      - fix index bugs in ostres.F (B-grid code)
305    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
306    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
307      default for SEAICE_emissivity, if useEXF; requires setting a wrong
308      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
309      backward compatiblity
310    o model/src: use sigmaR in calc_ivdc
311    
312  checkpoint63g (2011/12/16)  checkpoint63g (2011/12/16)
313  o pkg/seaice/seaice_growth.F:  o pkg/seaice/seaice_growth.F:
314    fix heat conservation of the coupled ocean-seaice system.    fix heat conservation of the coupled ocean-seaice system.
# Line 14  o pkg/seaice/seaice_growth.F: Line 319  o pkg/seaice/seaice_growth.F:
319  o pkg/seaice/seaice_model.F:  o pkg/seaice/seaice_model.F:
320    Remove this patholigical case treatment in evolution branch,    Remove this patholigical case treatment in evolution branch,
321    where it is un-necessary and breaks conservation.    where it is un-necessary and breaks conservation.
322    Update global_ocean.cs32x15/results accordingly for    Update global_ocean.cs32x15/results accordingly for
323    output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt    output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
324  o model/src:  o model/src:
325    useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in    useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
326    external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.    external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.

Legend:
Removed from v.1.1551  
changed lines
  Added in v.1.1604

  ViewVC Help
Powered by ViewVC 1.1.22